Know all about Coal and Litchfieldite properties here. All properties of rocks are important as they define the type of rock and its application. Coal belongs to Sedimentary Rocks while Litchfieldite belongs to Igneous Rocks.Texture of Coal is Amorphous, Glassy whereas that of Litchfieldite is Granular. Coal appears Veined or Pebbled and Litchfieldite appears Banded and Foilated. The luster of Coal is dull to vitreous to submetallic while that of Litchfieldite is greasy to dull. Coal is available in black, brown, dark brown, grey, light to dark grey colors whereas Litchfieldite is available in brown, buff, cream, green, grey, pink, white colors. The commercial uses of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry and that of Litchfieldite are creating artwork.